80690840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1109}}^1$

素因数の和:1244

約数の個数: 64

約数和(自身を含む): 194205600

約数和(自身を除く): 113514760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 340, 428, 535, 680, 856, 1070, 1109, 1819, 2140, 2218, 3638, 4280, 4436, 5545, 7276, 8872, 9095, 11090, 14552, 18190, 18853, 22180, 36380, 37706, 44360, 72760, 75412, 94265, 118663, 150824, 188530, 237326, 377060, 474652, 593315, 754120, 949304, 1186630, 2017271, 2373260, 4034542, 4746520, 8069084, 10086355, 16138168, 20172710, 40345420, 80690840]

約数ペア:

[(1, 80690840), (2, 40345420), (4, 20172710), (5, 16138168), (8, 10086355), (10, 8069084), (17, 4746520), (20, 4034542), (34, 2373260), (40, 2017271), (68, 1186630), (85, 949304), (107, 754120), (136, 593315), (170, 474652), (214, 377060), (340, 237326), (428, 188530), (535, 150824), (680, 118663), (856, 94265), (1070, 75412), (1109, 72760), (1819, 44360), (2140, 37706), (2218, 36380), (3638, 22180), (4280, 18853), (4436, 18190), (5545, 14552), (7276, 11090), (8872, 9095)]